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Letters .Patent No. 69,538, dated October 8, 1867.

IMPROVEMENT IN GHURNS.

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TO ALL WHOM .IT MAY CONGERN:

Be it known that I, THOMAS W. BI'JclLof Fawn River, in the county of St. J'osep'n, and State of Michigan, have inventada new and useful Improvement in Ghurns; and I do hereby declare that the following is a. full and exact description thereoreference being had to the accompanying drawings and to the letters of reference marked thereon.

'Ihe nature of luy invention consists in constructing a double-winged valve, or a pair of double-winged valves. in a. churn-dasher with onewingsolid .and the other provided with a detachable wire gauze or screenlike,slide`,`which may he removed for the more commodious gathering of the butter, the solid valve or wing being by the downward motion of the dasher placed at an -oblique angle with regard to the other (the sievelilre detachable wing) s o as to secures long-er and more circuitous passage for the cream in its escape upward, which, after passing through the wire gauze wing or valve, meets that portion of it (the cream) which is forced up through or at the sides ot" thech-urn, between the walls of the churn and the dssher, thus producing increased agitation. These valves or wings are 'pivoted so as to present less resistance in the upward motion of the dasher, tbe cream passing through their tops und sides. The inner vulve may be made of' solid perforated material, 'out I prefer theplan stated.

To enable others to use my invention, I will proceedv to describe its construction.

Figure 1 is a. perspective view of the dasher complete; A representing the side pieces, to which the valves v or wings are attached ;V B the cross-piece, secured to the sides, to which the handle C is fastened; D the solid, and the removable wing, made' of wire ganse. It may be made of fibrous material.

vFigure 2 shows the interior of oneof the side pieces, with a projection, F, upon which the wings rest in the upward motion of the dasher. For the easier gathering of the butter I prefer to have the detachable wings, or wire gauze slides, placed inwardly, or opposite each other. I may add that their rough surfaces and perforations aid in breaking up the crea-m. In fig. 2, Gr represents apertures in the side piece, in which the pivoted valves play.

Figure 3 shows the valves or wings separately, H representing the slide partly removed.

What I claim, and desire to secure by Letters Patent, is

The valve E, with its removable sieve-like slide, when employed for the uses and purposes expressed.

I `further claim the arrangement of the valves D and E, constructed and operating substantallyas show n for the pur-poses set forth. Y

' THOMAS W. BUCK.

Witnesses:

Isaac D. TOLL, T. C. GILLETT. 

